Thank you for all the advise, i appreciate what your saying cabwoody & 300 and i agree that like with most things its best to start on the cheaper end of the scale to make sure its enjoyable and something i will get into.
I'm one of those people who needs to have the best of when i do something, i don't know why. I'm not loaded and cant go for the big guns straight away but by going for something just above entry level i feel like i am taking a good step into the hobby.
Unfortunately i am way too keen to get started and after the advise from here and the reviews read, i have all ready gone out and brought the X-Terra Gold
Now to do something i may never have done before........ read the manual
https://www.prospectingaustralia.com/forum/img/member-images/5228/1432549753_detector.jpg